Really, there is much difference, chemically speaking. MCT oil is thinner, which makes it easier to draw and inject. EO (ethyl please) is also thinner and is often used for making high mg gear due to its ability to suspend the high amount of hormone. Some use it for all of their compounds because like MCT, it is also thinner, and used in conjunction with another carrier. Some are quite sensitive to EO, having a bad allergic reaction to it. EO is also often used in conjuction with guaicol to suspend otherwise oral compounds. Btw, EO is not an oil but rather a solvent to suspend hormone(s). Cottonseed oil is pretty common as is grape seed oil (GSO), which is slightly thiinner, but not by much.

Safflower oil is another common carrier oil used too. As for grape seed oil imo that's a relic like a dinosaur, and if a source is still using it they won't get my business. That shit is like 90 weight gear oil lol.

EO allows for less volume resulting in less scar tissue build up. Several years of simple TRT doses and on and off cycles you will see what I mean. It’s not crazy bad but the hard tissue is noticeable after time.

Every carrier oil has its advantages and disadvantages. MCT is certainly the smoothest in my experience.

There is definitely a use for it. I’ve just known more than one person who bought a load of gear and had to get rid of it because they can’t handle the eo. I definitely pick up what you’re putting down my man.

Volume For some reason just blows up my muscles with all that oil and its painful for me..Thats why i like the high dose stuff, Like 500mg per ML of Eq. Some say the high dose stuff is BS but im here to tell you it is NOT BS for me,depending on what product you are talking about and who is making it and what suspension oils and benzyl alcohol, or EO which is irritating to muscle. Higher concentrations also may make the injection more viscous, or may result in a painful injection. The product is in no practical sense more “potent” by making it a concentration such as 500 mg/mL or above. But you can do higher doses with Less Pinning Which is nice if you are trying to do 500mgs of EQ and 500mgs Of Test And 300MGS of deca twice a week.. thats a lot of pinning for lower dosed products. So fo me i prefer high dose stuff. And I know a lot of people will dis agree, But to each his own, I do like Medium Chain Triglyceride oil, It is VERY smooth, But Not good for High Mg per ML suspension.

Thanks for all the help guys. Im new to the forum. I havent used online sources in a few years since I had a reliable source where I from. They however recently moved and I lost contact so I came here. There seems to be allot of wisdom and I have already gained tons of knowledge from the vets here. I very much enjoy this forum and I am on here everyday. I just want to make sure I obey all the rules and not upset anyone. Thanks guy.

Does which solvent make a difference to how much discomfort around the injection site the next day?

I pinned my first ever dose of a xxxxxx triple blend of Test P, Masteron and Tren, 0.5ml 50mg dose of each, intending to do alternate days.

I definitely aspirated before injecting to make sure I hadn't hit a blood vessel, and I definitely didn't hit a nerve because I know what that feels like. But the area is still a bit achey the next day. I also read on a nursing students' forum that dorsogluteal injection site is no longer recommended because there's a greater risk of hitting a blood vessel than in the thigh or shoulder. But doing alternate days I can't always put it in my shoulders.

I assume the active ingredients probably are not what's making the area ache but the quality of the solvent.

With hindsight I wish I'd ordered a more reputable brand than xxxxxx (I got that opinion from reading xxxx but I've got it now. It doesn't say on the packaging or anywhere I've found so far online what the solvent is.

I also wouldn't go for a triple blend again, just deca, but hey I've got it now. So I'm going for a low cautious beginner dose and see what happens. I've only got 6 weeks worth anyway, and I've got all the proper stuff for PCT afterwards. I'm consulting with a much more experienced friend too.

For future reference which brands use MCT solvent? Sounds as though that one's the least likely to ache as much for as long?

Please read the rules... You are breaking many that effects guys like us that did read the rules. Scroll to the bottom of page and you will see. No source talk or lab talk...

Most blends contain EO (Ethyl Oleate) a lot of people are sensitive to that. Looks like the compound is all short esters.. Slow own bud and learn. You will find that you should just use test for the first few cycles. During that time you should be learning.

Ok, how can I possibly know what oil or solvent is used in a particular brand then, if I'm not allowed to mention the brand?

The source is non-responsive. I've emailed them 6 times over a month with no replies. I'll try again with that question but I don't expect they'll reply now.

The injection spot is still a little bit sore two days later. I'm just trying to work out whether that's more likely to be due to the solvent or my novice injection technique (I probably went too fast, because I was nervous). Maybe the immune system adapts to the solvent as less allergenic over time (I read that people usually have decreasing sore injection spots after a few times)?

I have actually read very thoroughly, mainly from https://steroid.com information pages. What I read was that drugs with lower androgenic to anabolic ratios generally have lower side effects. I was intending to get nandralone / deca, which I read has the lowest negative side effects, but that wasn't available from this source then.

It sounds like there are some very important details that you still need to work on. No offense, I don’t mean that negatively at all. Deca can be a bitch as far as sides are concerned. Some on MG flat out refuse to take it. Luckily for me, it just makes me break out like a motherf*cker. The bad part about deca sides is that the decanoate ester has a loooooong half life, so if you suddenly start having sides, you’re screwed for a couple of weeks even if you do decide to bail on it. As far as solvents are concerned, and depending on the sources brewing skills, a solvent such as EO is extremely unnecessary until you get into higher milligram gear. If you’re still sore a couple of days after the injection, 90% of the time it’s due to either injection technique or “virgin” muscle tissue. Part of the game and nothing to worry about. It takes practice. One last thing, an unresponsive source is usually not a good sign. Communication and customer service are right up there with good gear. That’s a key element of business. Don’t be scared to ask around, just don’t post any source names in open forum. Go to thwir Ask and discuss page and Post until you get your answers. Let us know if our need any assistance

What I read was that drugs with lower androgenic to anabolic ratios generally have lower side effects. I was intending to get nandralone / deca, which I read has the lowest negative side effects, but that wasn't available from this source then.

This is not necessarily true. There are androgenic side effects and anabolic side effects. Some are common to both and a few are unique. Each express themselves in different ways and in different degrees in individuals because we are each unique.

You are certainly on the right path researching and adding to your knowledge. As you gain experience you will know how individual compounds effect you. Dosage plays an important part of the expression of side effects so always be responsible and don't get in the mindset that more will provide you with more positive results.

This seems like a good place for this question: I just switched bottles/brands.

Taking 200mg Test weekly for TRT. Okay, old bottle was a 300mg Test E, it gave me horrible pip and I mean horrible pip! No matter where I inject. New bottle is 200mg Test E, zero pip....none at all. I can't tell I injected. Is the difference more likely to be the brand, the heavier load or the oil or a combination?